How to relate equilibrium data to obtain the binary interaction parameters of the NRTL equation?
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I need help understanding how to use solid-liquid equilibrium data to determine the binary interaction parameters for the NRTL equation. The specific equation is as follows: g12 – g22 = A1 + B1T； g21-g11=A2+B1T; T represents temperature. The literature suggests using A1, B1, A2, and B2 as adjustable parameters to correlate the vapor-liquid equilibrium data for the octane-water system. The sum of the squared errors of the vapor phase composition is taken as the objective function (i denotes the number of experiments), that is: S = ∑. The corresponding parameters for the five-parameter NRTL equation obtained through regression are shown elsewhere. The literature ultimately yielded parameters such as A1, B1, A2, and B2. I’m seeking help on how these were obtained!
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